package com.jsbj.tools;

public class PasswordUtils {


  public static String getDefaultPassword(String mobile) {
      if(StringUtils.isEmpty(mobile) || mobile.length()<4){
        return null;
      }
      String password = mobile.substring(mobile.length()-4,mobile.length())+"@1234";
      return password;
  }

    public static void main(String[] args) {
        System.out.println(getDefaultPassword("11"));

    }

}
